• Thumbnail for Curtain array
    Curtain arrays are a class of large multielement directional radio transmitting wire antennas, used in the short-wave radio bands. They constitute a type...
    21 KB (2,419 words) - 15:11, 8 August 2024
  • Thumbnail for Antenna array
    An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves...
    26 KB (3,365 words) - 04:04, 9 August 2024
  • Thumbnail for Reflective array antenna
    Other names are bedspring array and bowtie array depending on the type of elements making up the antenna. The curtain array is a larger version used by...
    14 KB (1,633 words) - 04:32, 23 April 2024
  • dipole elements makes the combination of the arrayed elements moderately directional. Curtain array A curtain array is any one of several designs for large...
    91 KB (12,178 words) - 05:04, 2 September 2024
  • modest-gain single-band curtain array antennas. They are named after Ernest J. Sterba, who developed a simple shortwave curtain array for Bell Labs in the...
    2 KB (216 words) - 02:37, 19 February 2022
  • antennas consist of a dipole about ⁠ 1 /4⁠ wavelength above ground, or arrays of such dipoles. Up to 16 dipoles can be used, allowing strong signals with...
    13 KB (1,533 words) - 02:21, 16 August 2024
  • Thumbnail for Moxon antenna
    Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from the amateur radio operator...
    6 KB (694 words) - 06:47, 20 August 2024
  • Thumbnail for G5RV antenna
    antenna Choke ring antenna Collinear antenna array Conformal antenna Corner reflector antenna Curtain array Folded inverted conformal antenna Fractal antenna...
    5 KB (628 words) - 12:56, 1 August 2023
  • footballer Ruth F. Curtain (1941–2018), Australian mathematician Curtain array antenna Curtained hair or curtains, a hairstyle featuring a long fringe Shutter...
    3 KB (319 words) - 00:00, 17 June 2023
  • Thumbnail for Shortwave radio
    Franklin went on to refine the directional transmission by inventing the curtain array aerial system. In July 1924, Marconi entered into contracts with the...
    57 KB (6,036 words) - 13:27, 31 July 2024
  • Thumbnail for High frequency
    antennas. Powerful shortwave broadcasting stations often use large wire curtain arrays. Antennas for transmitting skywaves are typically made from horizontal...
    17 KB (1,930 words) - 23:33, 6 August 2024
  • shortwave antennas for international broadcasting are the HRS antenna (curtain array), which cover a 2 to 1 frequency range and the log-periodic antenna...
    37 KB (5,261 words) - 04:04, 26 August 2024
  • Thumbnail for Rhombic antenna
    and curtain arrays. Larger log periodics provide wider frequency coverage with comparable gain to rhombics. Distributed feed curtains or HRS curtain arrays...
    10 KB (1,102 words) - 15:30, 29 October 2023
  • Thumbnail for Radio Netherlands Worldwide
    a roundabout a few hundred metres from the original site. Rotatable curtain array antennas were not in common use until the 1960s, so PCJ was far ahead...
    16 KB (1,673 words) - 14:12, 2 September 2024
  • ended. A portion of the large RCI shortwave antenna system (known as a curtain array) is visible in the background. The antennas were removed in 2014, although...
    36 KB (3,935 words) - 19:11, 3 September 2024
  • Thumbnail for Hörby transmitter
    short wave antennas have been blasted and dismantled. Among these the curtain antenna "G1". 55°48′22″N 13°43′16″E / 55.80611°N 13.72111°E / 55.80611;...
    2 KB (235 words) - 09:40, 27 June 2019
  • Thumbnail for Radio Moscow
    before HRS 12/6/1 technology became available in the west. HRS 8/8/1 curtain arrays create a 10-degree beam of shortwave energy, and can provide a highly...
    13 KB (1,144 words) - 16:46, 28 June 2024
  • antenna Choke ring antenna Collinear antenna array Conformal antenna Corner reflector antenna Curtain array Folded inverted conformal antenna Fractal antenna...
    2 KB (179 words) - 01:33, 6 January 2020
  • Thumbnail for Chain Home
    passive reflector wire, spaced 0.18 wavelength back. The resulting curtain array antenna produced a horizontally polarised signal that was directed strongly...
    114 KB (14,534 words) - 12:31, 29 July 2024
  • Thumbnail for Issoudun
    Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays (1990s) The International broadcasting center of...
    10 KB (1,074 words) - 11:02, 21 August 2024
  • 1.6 megawatts, broadcasting from 10 transmitters and a huge array of more than 20 curtain antennas. The feeder lines - which fed the signal from the transmitter...
    13 KB (1,505 words) - 08:41, 21 June 2024
  • Thumbnail for Aimeliik
    transmitter and a 30-year-old RCA transmitter all feeding several stacked curtain arrays which are beamed on South East Asia. They operate mainly on the 9 and...
    12 KB (1,136 words) - 02:53, 29 February 2024
  • Thumbnail for Ciborium (architecture)
    Temple of Jerusalem, a room whose entrance was covered by the parochet, a curtain or "veil", was certainly regarded as a precedent by the church; the naos...
    26 KB (3,225 words) - 09:44, 29 June 2024
  • Thumbnail for Bald Hills Radiator
    decommissioned, the VLQ9 and VLM4 services were discontinued and the shortwave curtain array antennas removed. The original VLQ transmitter is completely preserved...
    16 KB (1,989 words) - 13:51, 25 April 2024
  • Thumbnail for ALLISS
    Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays The International broadcasting center of TDF (Télédiffusion...
    11 KB (1,590 words) - 19:23, 1 June 2024
  • Thumbnail for Montsinéry-Tonnegrande
    capable of DRM digital shortwave transmissions. An image of the rotatable curtain array antenna in Montsinéry can be found by searching Flickr for "Montsinery...
    7 KB (602 words) - 21:10, 11 July 2024
  • Thumbnail for Rampisham Down
    complete new installation. Ten 500 kW transmitters and 34 wideband curtain arrays were installed. The majority of antennas point in an Easterly direction...
    10 KB (1,213 words) - 15:27, 29 July 2022
  • Thumbnail for Titahi Bay Transmitter
    broadcasts used a series of shorter free-standing masts supporting curtain arrays.[citation needed] Under the right conditions, the AM signal for National...
    6 KB (619 words) - 03:09, 15 June 2024
  • Thumbnail for Radio Australia
    implementation commenced shortly thereafter with the installation of two TCI curtain arrays, one beamed towards PNG and the other towards the Coral Sea and beyond...
    24 KB (2,574 words) - 23:48, 10 August 2024
  • Thumbnail for Shortwave relay station
    Former RFI Issoudun Relay station feeders and curtain arrays Former RFI Issoudun Relay curtain arrays The International broadcasting center of TDF (Télédiffusion...
    7 KB (887 words) - 15:13, 25 March 2023